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PAT700 Total Organic Carbon Analyzer – Installation
Page 23
Anatel
Operator Manual
I/O wiring
The analyzer has three 4-20 mA outputs, two discrete inputs, and four discrete outputs.
4-20 mA outputs
The analyzer has three 4-20 mA outputs, as listed in
•
Analog output 1 represents TOC (total organic carbon).
•
Analog output 2 represents conductivity or resistivity (user selected).
•
Analog output 3 represents temperature in °F or °C (user selected).
Discrete inputs
The analyzer has two discrete inputs, as listed in
.
•
Discrete input 1 initiates TOC analysis. When the output state switches from high to
low, the analyzer stops the current operation and runs a single TOC analysis. After the
analysis is complete, the analyzer returns to the mode defined by digital input 2. During
the TOC analysis, the analyzer ignores all subsequent trigger values.
•
Discrete input 2 switches the analyzer modes. If digital output 2 is in high state, the
analyzer is in TOC mode. If digital output 2 is in low state, the analyzer runs in flow with
conductivity mode.
Table 2-7
4-20 mA output wiring terminal designations
Wiring connector
Terminal
Description
Variable
Designation
1
4-20 mA source output for analog output 1 (+)
TOC
AO1+
2
4-20 mA sink output for analog output 1 (–)
TOC
AO1–
3
4-20 mA source output for analog output 2 (+)
Conductivity or
resistivity
AO2+
4
4-20 mA sink output for analog output 2 (–)
Conductivity or
resistivity
AO2–
5
4-20 mA source output for analog output 3 (+)
Temperature
AO3+
6
4-20 mA sink output for analog output 3 (–)
Temperature
AO3–
Table 2-8
Discrete input wiring terminal designations
Wiring connector Terminal
Description
Variable
Designation
1
Common connection for external sourcing (+)
Common
DI1/2+
2
Digital input 1 voltage source return input (–)
Initiates TOC analysis
DI1–
3
Digital input 2 voltage source return input (–)
Analyzer mode
DI2–
4
• 12 VDC power
• Connect only if output device requires power
supply
Output power supply
+12V
5
• 12 VDC power supply –
• Connect only if output device requires power
supply
Output power supply
GND
Содержание ANATEL PAT700
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Страница 56: ...Page 46 Run Modes PAT700 Total Organic Carbon Analyzer Operator Manual Anatel WGM 28 November 2007 Edition 01...
Страница 112: ...Page 102 Bottle Mode PAT700 Total Organic Carbon Analyzer Operator Manual Anatel WGM 28 November 2007 Edition 01...
Страница 136: ...Page 126 Data Review PAT700 Total Organic Carbon Analyzer Operator Manual Anatel WGM 28 November 2007 Edition 01...
Страница 154: ...Page 144 Specifications PAT700 Total Organic Carbon Analyzer Operator Manual Anatel WGM 28 November 2007 Edition 01...
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